I am sandboxed but with "allow-scripts allow-popups allow-same-origin". After my initial load, "allow-same-origin" is removed and then I open file_iframe_sandbox_k_if9.html in 3 different ways, which attemps to call a function in my parent. This should succeed since the new sandbox flags shouldn't have taken affect on me until I'm reloaded. open window open window Now navigate to file_iframe_sandbox_k_if1.html to do tests for a sandbox opening a window when only "allow-scripts allow-popups" are specified. navigate to if1